Adsorption behaviors of Congo red onto Fe2O3/Fe3O4 heterogeneous nanoparticles prepared via an alcohol-assisted combustion process
Magnetic Fe _2 O _3 /Fe _3 O _4 heterogeneous nanoparticles were prepared through an alcohol-assisted combustion process. The composition, morphology and magnetic properties of the nanomaterials were characterized by XRD, TEM and VSM techniques. The magnetic Fe _2 O _3 /Fe _3 O _4 heterogeneous nano...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2021-01-01
|
| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/abf7f4 |
| _version_ | 1827869006356283392 |
|---|---|
| author | Peng Deng Zhou Wang Zhongjun Pan Shuanglong Zhang Guoxiang Rong |
| author_facet | Peng Deng Zhou Wang Zhongjun Pan Shuanglong Zhang Guoxiang Rong |
| author_sort | Peng Deng |
| collection | DOAJ |
| description | Magnetic Fe _2 O _3 /Fe _3 O _4 heterogeneous nanoparticles were prepared through an alcohol-assisted combustion process. The composition, morphology and magnetic properties of the nanomaterials were characterized by XRD, TEM and VSM techniques. The magnetic Fe _2 O _3 /Fe _3 O _4 heterogeneous nanomaterials were soft magnetic nanoparticles with a saturation magnetization of 38.6 emu g ^−1 and an average particle size of approximate 29 nm. The adsorption behavior of Congo red (CR) onto Fe _2 O _3 /Fe _3 O _4 heterogeneous nanoparticles was examined by UV-visible absorption spectroscopy, and the data for the kinetics and the isotherm of CR adsorption onto Fe _2 O _3 /Fe _3 O _4 heterogeneous nanoparticles were in good agreement with the pseudo-second-order model and Langmuir model, respectively, which suggested that the adsorption mechanism of CR onto Fe _2 O _3 /Fe _3 O _4 heterogeneous nanoparticles was the chemical and monolayer adsorption. Moreover, the influence of pH on the adsorption process was investigated, and when pH was equal to and less than 7, there would be larger adsorbances. |
| first_indexed | 2024-03-12T15:40:05Z |
| format | Article |
| id | doaj.art-4f9ea90b85c5425aab750c7177ae4b2f |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:40:05Z |
| publishDate | 2021-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-4f9ea90b85c5425aab750c7177ae4b2f2023-08-09T16:02:32ZengIOP PublishingMaterials Research Express2053-15912021-01-018404501910.1088/2053-1591/abf7f4Adsorption behaviors of Congo red onto Fe2O3/Fe3O4 heterogeneous nanoparticles prepared via an alcohol-assisted combustion processPeng Deng0Zhou Wang1Zhongjun Pan2Shuanglong Zhang3Guoxiang Rong4https://orcid.org/0000-0003-1432-5044The People’s Hospital of Danyang, Affiliated Danyang Hospital of Nantong University , Zhenjiang 212300, People’s Republic of ChinaCollege of Vanadium and Titanium, Panzhihua University , Panzhihua 617000, People’s Republic of ChinaThe People’s Hospital of Danyang, Affiliated Danyang Hospital of Nantong University , Zhenjiang 212300, People’s Republic of ChinaThe People’s Hospital of Danyang, Affiliated Danyang Hospital of Nantong University , Zhenjiang 212300, People’s Republic of ChinaThe People’s Hospital of Danyang, Affiliated Danyang Hospital of Nantong University , Zhenjiang 212300, People’s Republic of ChinaMagnetic Fe _2 O _3 /Fe _3 O _4 heterogeneous nanoparticles were prepared through an alcohol-assisted combustion process. The composition, morphology and magnetic properties of the nanomaterials were characterized by XRD, TEM and VSM techniques. The magnetic Fe _2 O _3 /Fe _3 O _4 heterogeneous nanomaterials were soft magnetic nanoparticles with a saturation magnetization of 38.6 emu g ^−1 and an average particle size of approximate 29 nm. The adsorption behavior of Congo red (CR) onto Fe _2 O _3 /Fe _3 O _4 heterogeneous nanoparticles was examined by UV-visible absorption spectroscopy, and the data for the kinetics and the isotherm of CR adsorption onto Fe _2 O _3 /Fe _3 O _4 heterogeneous nanoparticles were in good agreement with the pseudo-second-order model and Langmuir model, respectively, which suggested that the adsorption mechanism of CR onto Fe _2 O _3 /Fe _3 O _4 heterogeneous nanoparticles was the chemical and monolayer adsorption. Moreover, the influence of pH on the adsorption process was investigated, and when pH was equal to and less than 7, there would be larger adsorbances.https://doi.org/10.1088/2053-1591/abf7f4magnetic Fe2O3/Fe3O4 heterogeneous nanoparticlesCongo redadsorption behaviorsadsorption mechanism |
| spellingShingle | Peng Deng Zhou Wang Zhongjun Pan Shuanglong Zhang Guoxiang Rong Adsorption behaviors of Congo red onto Fe2O3/Fe3O4 heterogeneous nanoparticles prepared via an alcohol-assisted combustion process Materials Research Express magnetic Fe2O3/Fe3O4 heterogeneous nanoparticles Congo red adsorption behaviors adsorption mechanism |
| title | Adsorption behaviors of Congo red onto Fe2O3/Fe3O4 heterogeneous nanoparticles prepared via an alcohol-assisted combustion process |
| title_full | Adsorption behaviors of Congo red onto Fe2O3/Fe3O4 heterogeneous nanoparticles prepared via an alcohol-assisted combustion process |
| title_fullStr | Adsorption behaviors of Congo red onto Fe2O3/Fe3O4 heterogeneous nanoparticles prepared via an alcohol-assisted combustion process |
| title_full_unstemmed | Adsorption behaviors of Congo red onto Fe2O3/Fe3O4 heterogeneous nanoparticles prepared via an alcohol-assisted combustion process |
| title_short | Adsorption behaviors of Congo red onto Fe2O3/Fe3O4 heterogeneous nanoparticles prepared via an alcohol-assisted combustion process |
| title_sort | adsorption behaviors of congo red onto fe2o3 fe3o4 heterogeneous nanoparticles prepared via an alcohol assisted combustion process |
| topic | magnetic Fe2O3/Fe3O4 heterogeneous nanoparticles Congo red adsorption behaviors adsorption mechanism |
| url | https://doi.org/10.1088/2053-1591/abf7f4 |
| work_keys_str_mv | AT pengdeng adsorptionbehaviorsofcongoredontofe2o3fe3o4heterogeneousnanoparticlespreparedviaanalcoholassistedcombustionprocess AT zhouwang adsorptionbehaviorsofcongoredontofe2o3fe3o4heterogeneousnanoparticlespreparedviaanalcoholassistedcombustionprocess AT zhongjunpan adsorptionbehaviorsofcongoredontofe2o3fe3o4heterogeneousnanoparticlespreparedviaanalcoholassistedcombustionprocess AT shuanglongzhang adsorptionbehaviorsofcongoredontofe2o3fe3o4heterogeneousnanoparticlespreparedviaanalcoholassistedcombustionprocess AT guoxiangrong adsorptionbehaviorsofcongoredontofe2o3fe3o4heterogeneousnanoparticlespreparedviaanalcoholassistedcombustionprocess |